1 Unit 1 Test Study Guide Topic #1: Points, lines, & planes

Use the diagram to the right to answer questions 1-4.
1. Name two points collinear to K.
2. Give another name for line b.
3. Name the intersection of line c and plane R.
4. Name a point non - coplanar to plane R.

Use the diagram to the right to answer questions 5 - 8.
5. How many planes are shown in the figure?
6. Give another name for plane W.
7. Name the intersection of plane ADE and plane W.
8. Name a point non-collinear to points A and B.

Topic #2 Distance & Midpoint

9. Find ST if (-3,10) and T(-2,3).

10. Given the graph below, find PQ.

11. Find the coordinates of the midpoint of HK if H(-1,2) and K (-7,-4).

answer: 2/4

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.